blob: c373465930174b1a950674c67cf2914a4b79f361 (
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total = 1
number = []
with open("input") as f:
for line in f:
number.append(line.strip())
number_oxy = list(number)
number_co2 = list(number)
i = 0
while len(number_oxy) > 1 and i < len(number_oxy[0]):
number_1 = len(list(filter(lambda x: x[i] == '1', number_oxy)))
total = len(number_oxy)
if number_1 >= total - number_1 :
keep = '1'
else:
keep = '0'
number_oxy = [ number for number in number_oxy if number[i] == keep]
i += 1
i = 0
while len(number_co2) > 1 and i < len(number_co2[0]):
number_0 = len(list(filter(lambda x: x[i] == '0', number_co2)))
total = len(number_co2)
if number_0 > total - number_0 :
keep = '1'
else:
keep = '0'
number_co2 = [ number for number in number_co2 if number[i] == keep]
i += 1
oxy_rate = int("".join(number_oxy[0]), 2)
CO2_rate = int("".join(number_co2[0]), 2)
print(oxy_rate * CO2_rate)
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